HFU HF Underground

Loggings => Satellite, Radiosondes and Other VHF/UHF Signals => Topic started by: jace on October 30, 2018, 1611 UTC

Title: Sound ID / fasted paced chirps + high pitch chirping
Post by: jace on October 30, 2018, 1611 UTC
What type of transmission are these sounds ?
I've ruled out radar's already.